Broadcast receiving device and screen changing method thereof

Abstract

A method and apparatus including a broadcast receiving device and a screen changing method thereof are provided. The broadcast receiving device including a command input part which receives a channel change command to change the present channel, and a controller which controls to display an image on a screen while a channel is changed according to the channel change command. Accordingly, channel change is smoothly performed.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority under 35 U.S.C. §119(a) from Korean Patent Application No. 10-2006-0071039, filed in the Korean Intellectual Property Office on Jul. 27, 2006, the entire disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention:[0003]Methods and apparatuses consistent with the present invention relate to a broadcast receiving device and a screen changing method thereof More particularly, the present invention relates to a broadcast receiving device which smoothly changes the screen by displaying an image stored in the broadcast receiving device without displaying a blank screen when changing a channel, and a screen changing method thereof.[0004]2. Description of the Related Art:[0005]In general, when using broadcast receiving devices such as a digital television and an analog television, when a user changes a channel, a blank screen B is displayed for a certain amou...

AI Technical Summary

Benefits of technology

[0009]Exemplary embodiments of the present invention overcome the above disadvantages and other disadvantages not described above. Also, the present invention is not required to overcome the disadvantages described above, and an exemplary embodiment of the present invention may not overcome any of the problems described above. Accordingly, an aspect of the present invention is to provide a broadcast receiving device which smoothly changes the screen without displaying a blank screen when changing the channel, and a screen changing method thereof.

[0011]According to another aspect of the present invention, if the channel change command is input, the controller stops an image signal corresponding to the present channel, displays the image signal corresponding to the present channel simultaneously with an image signal corresponding to the image, and reduces the brightness and the contrast of the image signal corresponding to the present channel and increases the brightness and the contrast of the image signal corresponding to the image.

[0012]According to another aspect of the present invention, if channel change according to the channel change command is complete, the controller overlaps the image signal corresponding to the image with an image signal corresponding to the new channel, and reduces the brightness and the contrast of the image signal corresponding to the image and increases the brightness and the contrast of the image signal corresponding to the new channel.

[0019]The broadcast receiving device may further comprise an image quality enhancer which removes noise in the image signal, wherein if channel change according to the channel change command is complete, the controller controls the image quality enhancer to remove noise in the image signal corresponding to the new channel and display the image signal corresponding to the new channel on the display.

[0022]According to another aspect of the present invention, if channel change according to the channel change command is completed, further comprising overlapping the image signal corresponding to the image with an image signal corresponding to the new channel, and reducing the brightness and the contrast of the image signal corresponding to the image and increasing the brightness and the contrast of the image signal corresponding to the new channel.

Problems solved by technology

During the above process, as the screen displays the blank screen B, the image output is cut and the screen flashes, causing the user's eyes to feel fatigue.

This phenomenon gets more severe when the user uses the broadcast receiving device at night.

This is a big problem in broadcast receiving devices such as digital televisions which are now widely distributed.

That is, as the digital television uses a display panel having intense brightness and high contrast to produce a better image quality, the blank screen B visible when changing the channel causes even more fatigue to the user's eyes.

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